CN108780671B - Radiation-sensing thermoplastic composite panel - Google Patents
Radiation-sensing thermoplastic composite panel Download PDFInfo
- Publication number
- CN108780671B CN108780671B CN201680081549.5A CN201680081549A CN108780671B CN 108780671 B CN108780671 B CN 108780671B CN 201680081549 A CN201680081549 A CN 201680081549A CN 108780671 B CN108780671 B CN 108780671B
- Authority
- CN
- China
- Prior art keywords
- storage phosphor
- inorganic storage
- inorganic
- panel
- blue dye
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229920001169 thermoplastic Polymers 0.000 title abstract description 40
- 239000002131 composite material Substances 0.000 title description 37
- 239000004416 thermosoftening plastic Substances 0.000 title description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 228
- 238000003860 storage Methods 0.000 claims abstract description 196
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000001045 blue dye Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 26
- RBTKNAXYKSUFRK-UHFFFAOYSA-N heliogen blue Chemical compound [Cu].[N-]1C2=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=NC([N-]1)=C(C=CC=C3)C3=C1N=C([N-]1)C3=CC=CC=C3C1=N2 RBTKNAXYKSUFRK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000007731 hot pressing Methods 0.000 claims description 17
- 238000001746 injection moulding Methods 0.000 claims description 14
- 229920002397 thermoplastic olefin Polymers 0.000 claims description 14
- 239000000155 melt Substances 0.000 claims description 10
- 238000013329 compounding Methods 0.000 claims description 5
- 239000000975 dye Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 25
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 29
- 238000001125 extrusion Methods 0.000 description 14
- 230000005284 excitation Effects 0.000 description 13
- 238000002347 injection Methods 0.000 description 13
- 239000007924 injection Substances 0.000 description 13
- 229920001684 low density polyethylene Polymers 0.000 description 13
- 239000004702 low-density polyethylene Substances 0.000 description 13
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000008188 pellet Substances 0.000 description 12
- 239000012815 thermoplastic material Substances 0.000 description 12
- 239000000203 mixture Substances 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 11
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 10
- -1 silver halide Chemical class 0.000 description 10
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 9
- 230000005855 radiation Effects 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000003384 imaging method Methods 0.000 description 7
- 229910052693 Europium Inorganic materials 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- IRERQBUNZFJFGC-UHFFFAOYSA-L azure blue Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[S-]S[S-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] IRERQBUNZFJFGC-UHFFFAOYSA-L 0.000 description 6
- LYQFWZFBNBDLEO-UHFFFAOYSA-M caesium bromide Chemical compound [Br-].[Cs+] LYQFWZFBNBDLEO-UHFFFAOYSA-M 0.000 description 6
- 239000010408 film Substances 0.000 description 6
- 235000013799 ultramarine blue Nutrition 0.000 description 6
- 229910052684 Cerium Inorganic materials 0.000 description 5
- 229910052788 barium Inorganic materials 0.000 description 5
- 229910052794 bromium Inorganic materials 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000011230 binding agent Substances 0.000 description 4
- 229910052797 bismuth Inorganic materials 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 238000002601 radiography Methods 0.000 description 4
- 229910052761 rare earth metal Inorganic materials 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052593 corundum Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 150000004820 halides Chemical class 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 229910001845 yogo sapphire Inorganic materials 0.000 description 3
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 description 2
- 125000006091 1,3-dioxolane group Chemical class 0.000 description 2
- 239000004594 Masterbatch (MB) Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 229910052772 Samarium Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052792 caesium Inorganic materials 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- VVOLVFOSOPJKED-UHFFFAOYSA-N copper phthalocyanine Chemical compound [Cu].N=1C2=NC(C3=CC=CC=C33)=NC3=NC(C3=CC=CC=C33)=NC3=NC(C3=CC=CC=C33)=NC3=NC=1C1=CC=CC=C12 VVOLVFOSOPJKED-UHFFFAOYSA-N 0.000 description 2
- CABLHQRGDOBETQ-UHFFFAOYSA-L dioxido-oxo-sulfanylidene-$l^{6}-sulfane;tetrabutylazanium Chemical compound [O-]S([O-])(=O)=S.CCCC[N+](CCCC)(CCCC)CCCC.CCCC[N+](CCCC)(CCCC)CCCC CABLHQRGDOBETQ-UHFFFAOYSA-L 0.000 description 2
- 230000005670 electromagnetic radiation Effects 0.000 description 2
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 229920001179 medium density polyethylene Polymers 0.000 description 2
- 239000004701 medium-density polyethylene Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Chemical compound O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000002952 polymeric resin Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000001303 quality assessment method Methods 0.000 description 2
- 150000002910 rare earth metals Chemical class 0.000 description 2
- 229910052701 rubidium Inorganic materials 0.000 description 2
- 229910052712 strontium Inorganic materials 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- BQCIDUSAKPWEOX-UHFFFAOYSA-N 1,1-Difluoroethene Chemical group FC(F)=C BQCIDUSAKPWEOX-UHFFFAOYSA-N 0.000 description 1
- LHENQXAPVKABON-UHFFFAOYSA-N 1-methoxypropan-1-ol Chemical compound CCC(O)OC LHENQXAPVKABON-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920001634 Copolyester Polymers 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910004369 ThO2 Inorganic materials 0.000 description 1
- 229910052776 Thorium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- 229920010346 Very Low Density Polyethylene (VLDPE) Polymers 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 229910001615 alkaline earth metal halide Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011013 aquamarine Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000005843 halogen group Chemical group 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum oxide Inorganic materials [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000009607 mammography Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000399 orthopedic effect Effects 0.000 description 1
- KTUFCUMIWABKDW-UHFFFAOYSA-N oxo(oxolanthaniooxy)lanthanum Chemical compound O=[La]O[La]=O KTUFCUMIWABKDW-UHFFFAOYSA-N 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000013441 quality evaluation Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 235000019333 sodium laurylsulphate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- PBCFLUZVCVVTBY-UHFFFAOYSA-N tantalum pentoxide Inorganic materials O=[Ta](=O)O[Ta](=O)=O PBCFLUZVCVVTBY-UHFFFAOYSA-N 0.000 description 1
- 239000012085 test solution Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
- A61B6/4208—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector
- A61B6/4216—Arrangements for detecting radiation specially adapted for radiation diagnosis characterised by using a particular type of detector using storage phosphor screens
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B47/00—Porphines; Azaporphines
- C09B47/04—Phthalocyanines abbreviation: Pc
- C09B47/045—Special non-pigmentary uses, e.g. catalyst, photosensitisers of phthalocyanine dyes or pigments
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
- C09B67/0071—Process features in the making of dyestuff preparations; Dehydrating agents; Dispersing agents; Dustfree compositions
- C09B67/0084—Dispersions of dyes
- C09B67/0085—Non common dispersing agents
- C09B67/009—Non common dispersing agents polymeric dispersing agent
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
- G21K2004/06—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens with a phosphor layer
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
- G21K4/00—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens
- G21K2004/08—Conversion screens for the conversion of the spatial distribution of X-rays or particle radiation into visible images, e.g. fluoroscopic screens with a binder in the phosphor layer
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Medical Informatics (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- General Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Dispersion Chemistry (AREA)
- Luminescent Compositions (AREA)
- Conversion Of X-Rays Into Visible Images (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiography Using Non-Light Waves (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Abstract
The storage phosphor panel may include an extruded inorganic storage phosphor layer comprising a thermoplastic polymer and an inorganic storage phosphor material, wherein the extruded inorganic storage phosphor panel has an image quality comparable to an inorganic storage phosphor screen with a conventional solvent coating. Further disclosed are certain exemplary method and/or apparatus embodiments that can provide an inorganic storage phosphor panel comprising a selected blue dye that can improve resolution. Certain exemplary storage phosphor panels comprise an inorganic storage phosphor material having a specific extrudable blue dye (copper phthalocyanine) with a resolution of greater than 16 line pairs/mm. Certain exemplary storage phosphor panel embodiments include any non-acicular storage phosphor panel having a resolution greater than or equal to 19 line pairs/mm.
Description
Technical Field
The present invention relates generally to the field of inorganic storage phosphor materials. More particularly, the present invention relates to composites of melt-extrudable and/or injection-moldable and/or hot-melt-compressible inorganic storage phosphor materials and thermoplastic and/or thermosetting polymers and methods of making and/or using the same.
Background
Near the beginning of the 20 th century, it was recognized that medically useful anatomical images could be obtained when films containing radiation sensitive silver halide emulsions were exposed to X-radiation (X-rays) passed through a patient. Subsequently, it was recognized that X-ray exposure could be significantly reduced by placing a radiographic phosphor panel near the thin film.
Radiographic phosphor panels typically include an inorganic phosphor layer that can absorb X-rays and emit light to expose the thin film. The inorganic phosphor layer is typically a crystalline material that responds imagewise to X-rays. Based on the type of phosphor used, radiographic phosphor panels may be classified into fast emitting panels and image storage panels.
Image storage panels (also commonly referred to as "storage phosphor panels") typically contain a storage ("excitable") phosphor that is capable of absorbing X-rays and storing its energy until subsequently excited to emit light in an imagewise manner according to a stored pattern of X-rays. A well known use of storage phosphor panels is computer or digital radiography. In these applications, the panel is first imagewise exposed to X-rays, which are absorbed by the inorganic phosphor particles to produce a latent image. Although the phosphor particles may fluoresce to some extent, most of the absorbed X-rays are stored therein. At some interval of time after the initial X-ray exposure, the storage phosphor panel is subjected to radiation of a longer wavelength, such as visible or infrared light (e.g., excitation light), resulting in the emission of energy stored in the phosphor particles as excited light (e.g., excitation light), which is detected and converted into a continuous electrical signal that is processed to present a visible image on a recording material, such as a photosensitive film or a digital display device (e.g., a television or computer display). For example, a storage phosphor panel may be exposed to X-rays in an imagewise manner and then excited by a laser with a red or infrared beam, resulting in green or blue light emission, which is detected and converted into electrical signals that are processed to present a visible image on a computer display. The excitation light may also be other sources than lasers (e.g. LED lamps) which would allow excitation of larger areas of the storage phosphor and detection may be done using a two-dimensional detector (e.g. CCD or CMOS device). Thereafter, the image from the storage phosphor panel may be "erased" by exposure to UV radiation (e.g., from a fluorescent lamp).
Thus, it is generally desirable for a storage phosphor panel to store as much incident X-rays as possible while emitting the stored energy in negligible amounts until after subsequent excitation; the stored energy can only be released after exposure to the excitation light. In this manner, the storage phosphor panel may be reused to store and transmit radiation images.
However, there is a need for improved storage phosphor panels. More specifically, inorganic storage phosphor panels that require melt extrusion or injection molding or hot pressing have image quality comparable to that of conventional solvent coated screens with equivalent X-ray absorption.
Disclosure of Invention
One aspect of the present application is a technique to advance medical, dental, and non-destructive imaging systems.
Another aspect of the present application is to address, in whole or in part, at least the foregoing and other deficiencies in the related art.
Another aspect of the present application is to provide, in whole or in part, at least the advantages described herein.
In one aspect, embodiments of exemplary melt-extruded or injection molded or hot pressed inorganic storage phosphor panels are provided that include a melt-extruded or injection molded or hot pressed inorganic storage phosphor layer comprising a thermoplastic polymer and an inorganic storage phosphor material, wherein the melt-extruded or injection molded or hot pressed inorganic storage phosphor panel has an image quality comparable to or better than that of a conventional solvent coated screen having an equivalent X-ray absorption rate.
In another aspect, embodiments of an exemplary inorganic storage phosphor detection system are also disclosed that include a melt extruded or injection molded or hot pressed inorganic storage phosphor panel comprising a melt extruded or injection molded or hot pressed inorganic storage phosphor layer comprising a thermoplastic olefin and an inorganic storage phosphor material.
In another aspect, disclosed are exemplary method embodiments of making a melt-extruded or injection molded or hot-pressed inorganic storage phosphor panel, comprising providing a thermoplastic polymer comprising at least one thermoplastic polymer and an inorganic storage phosphor material; and melt extruding or injection molding or hot pressing the thermoplastic polymer and inorganic storage phosphor material to form a melt extruded or injection molded or hot pressed inorganic storage phosphor layer.
In another aspect, an exemplary inorganic storage phosphor panel is disclosed that may include an inorganic storage phosphor layer comprising at least one thermoplastic material, an inorganic storage phosphor material, and a selected blue dye to improve resolution, wherein the selected blue dye is a copper phthalocyanine based blue dye.
In another aspect, an exemplary non-acicular inorganic storage phosphor panel is disclosed that may include an inorganic storage phosphor layer comprising an inorganic storage phosphor material and a selected blue dye to improve resolution, wherein the inorganic storage phosphor panel has an image resolution greater than or equal to 19 line-pairs per millimeter (lp/mm).
In another aspect, an exemplary method of using an inorganic storage phosphor panel, which may comprise a melt-extruded, injection-molded, or hot-pressed material comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material, and 1 x 102ppm to 2 x 102ppm of a copper phthalocyanine based blue dye to form an extruded inorganic storage phosphor layer; exposing the extruded inorganic storage phosphor layer to X-rays to form a latent image; the latent image in the extruded inorganic storage phosphor layer is exposed to excitation light to generate a digital image of the latent image.
These objects are given only by way of illustrative example and may be exemplary of one or more embodiments of the present invention. Other desirable objectives and advantages inherently achieved by the disclosed invention may occur or become apparent to those skilled in the art. The invention is defined by the appended claims.
Brief description of the drawings
The above and other objects, features and advantages of the present invention will become apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings. The elements of the drawings are not necessarily to scale relative to each other.
Fig. 1A-1C depict exemplary portions of a scintillator panel according to various embodiments of the present disclosure.
Description of illustrative embodiments
The following is a description of exemplary embodiments, reference being made to the drawings wherein like reference numerals identify like structural elements in each of the several views.
Exemplary embodiments herein provide storage phosphor panels comprising an extruded storage phosphor layer having a thermoplastic polymer and a storage phosphor material, and methods of making the same. It should be noted that although the present specification and examples relate primarily to radiographic medical imaging of humans or other objects, embodiments of the apparatus and methods of the present application may also be applied to other radiographic imaging applications. This includes applications such as non-destructive inspection (NDT) that can obtain radiographic imaging and provide different processing to emphasize different features of the imaged object.
An important characteristic of the screen is its X-ray absorption. The energy and intensity of the radiation incident on the storage phosphor screen will vary depending on the particular application (orthopedic or mammography or intraoral dental or extraoral dental or non-destructive metal testing or..). However, in order to be of value as an X-ray imaging tool, the storage phosphor screen must have sufficient X-ray absorption to produce a useful image. In practice, this requires about 40-60% of the extruded storage phosphor screen (by volume) to be storage phosphor material (barium fluorobromoiodide or cesium bromide).
Another requirement of a storage phosphor screen is that it can be read from either side of the screen, and in either transmissive or reflective mode, with respect to the direction of incidence of the excitation radiation used to read the information in the screen. And it is desirable that the screen be processable under ambient lighting conditions or room light.
Depending on the particular imaging application (medical radiography or dental radiography or non-destructive testing), the physical properties required for the storage phosphor panel may be widely varied. However, the individual physical properties may be defined by some key properties of the storage phosphor screen, such as its bending resistance
（http://www.taberindustries.com/stiffness-tester) Tear resistance, and a method for producing the same
（http://jlwinstruments.com/index.php/products/test-solutions/tear- resistance-testing/) Or fracture resistance (https://www.testingmachines.com/product/31-23- mit-folding-endurance-tester). Overview of various methods for measuring these characteristicsPlease refer to
（http://ipst.gatech.edu/faculty/popil_roman/pdf_presentations/ Prediction%20of%20Fold%20Cracking%20Propensity%20through%20Physical% 20Testing.pdf). All of this can be achieved using single or multi-layer structures, including additional co-extruded layers on the screen, which may contain particles and/or chemicals to achieve the physical properties required for the mechanism to accommodate the scanner, and/or by end-user processing.
Furthermore, it is important that the extruded storage phosphor screens are recyclable, i.e., the composition of the screens needs to be such that they can be reused to make a storage phosphor screen, and/or the storage phosphor screen portion of the screen can be reused to make a new screen.
The excitation and emission wavelengths of a storage phosphor panel are typically determined by the particular storage phosphor. The peak excitation wavelength-excitation wavelength of common storage phosphors is quite broad and in the range of 550-700 nm. However, the stimulated emission of europium-doped barium fluorobromoiodide storage phosphor has a peak at about 390 nm.
Fig. 1 depicts a portion of an exemplary storage phosphor panel 100 according to various embodiments of the present disclosure. As used herein, unless otherwise indicated, a "storage phosphor panel" is understood to have its ordinary meaning in the art, and refers to a panel or screen that stores an image when exposed to X-radiation and emits light when excited by another (typically visible) radiation. Thus, "panel" and "screen" are used interchangeably herein. It will be apparent to those of ordinary skill in the art that the storage phosphor panel 100 shown in fig. 1A-1C represents a generalized schematic and that other components may be added or existing components may be removed or modified.
The storage phosphor panels disclosed herein may take any convenient form provided that they meet all of the conventional requirements for computed radiography. As shown in FIG. 1A, storage phosphor panel 100 may comprise a support 110 and a melt extrusion or injection molding or hot press disposed over support 110The storage phosphor layer 120. Any flexible or rigid material suitable for use in a storage phosphor panel and that does not interfere with the recyclability of the storage phosphor screen may be used as support 110, such as glass, plastic film, ceramic, polymeric material, carbon substrate, and the like. In certain embodiments, the support 110 may be made of ceramic (e.g., Al)2O3) Or a metallic (e.g., Al) or polymeric (e.g., polypropylene) material. As also shown in fig. 1A, in one aspect, support 110 may be co-extruded with storage phosphor layer 120. The support may be transparent, translucent, opaque or coloured (e.g. containing a blue or black dye). Alternatively, the support may be omitted from the storage phosphor panel, if desired.
On the other hand, if a support is used, an anti-curl layer may be coextruded on either side of the support, or on the sides of the storage phosphor screen, to manage the dimensional stability of the storage phosphor screen.
The thickness of support member 110 may vary depending on the material used, so long as it is capable of supporting itself and the layers disposed thereon. Typically, the support can have a thickness of about 50 μm to about 1,000 μm, such as about 80 μm to about 1000 μm, such as about 80 μm to about 500 μm. The support 110 may have a smooth or rough surface, depending on the desired application. In one embodiment, the storage phosphor panel does not include a support.
If a support is included, the storage phosphor layer 120 may be disposed on the support 110. Alternatively, the storage phosphor layer 120 may be separately melt extruded or injection molded or hot pressed as shown in fig. 1B, or melt extruded or injection molded or hot pressed together with the opaque layer, the anti-curl layer, and combinations thereof, for example, as shown in layer 150 of fig. 1A and 1C.
Storage phosphor layer 120 may include a thermoplastic polymer 130 and a storage phosphor material 140. The thermoplastic polymer 130 can be a polyolefin, such as polyethylene, polypropylene, and combinations thereof, or a polyurethane, polyester, polycarbonate, polysiloxane, silicone, polyvinyl chloride (PVC), polyvinylidene chloride (PVdC). In one aspect, the polyethylene can be Low Density Polyethylene (LDPE), Medium Density Polyethylene (MDPE), Linear Low Density Polyethylene (LLDPE), Very Low Density Polyethylene (VLDPE), and the like. In a preferred embodiment, the thermoplastic polymer 130 is a Low Density Polyethylene (LDPE). The thermoplastic polymer 130 may be present in the storage phosphor layer 120 in an amount of about 1% to about 50% by volume, for example about 10% to about 30% by volume, relative to the total volume of the storage phosphor layer 120.
As used herein, "storage phosphor particles" and "excitable phosphor particles" are used interchangeably and are understood to have their ordinary meaning as understood by those skilled in the art unless otherwise indicated. "storage phosphor particles" or "excitable phosphor particles" refers to phosphor crystals that are capable of absorbing and storing X-rays and emitting electromagnetic radiation (e.g., light) having a second wavelength when exposed to or excited by radiation of another wavelength. Typically, the excitable phosphor particles are turbid polycrystalline bodies with a particle size of a few microns to a few hundred microns; however, submicron to nanometer sized fine phosphor particles have also been synthesized and may be useful. Thus, the optimum average particle size for a given application reflects a balance between imaging speed and required image sharpness.
Excitable phosphor particles may be obtained by doping, for example, rare earth ions as activators into a host material such as oxides, nitrides, oxynitrides, sulfides, oxysulfides, silicates, halides, and the like, and combinations thereof. As used herein, "rare earth" refers to chemical elements having an atomic number of 39 or 57 to 71 (also referred to as "lanthanides"). The excitable phosphor particles are capable of absorbing a wide range of electromagnetic radiation. In exemplary preferred embodiments, the excitable phosphor particles may absorb radiation having wavelengths of about 0.01 to about 10nm (e.g., X-rays) and about 300nm to about 1400nm (e.g., UV, visible, and infrared). The excitable phosphor particles may emit excited light having a wavelength of about 300nm to about 650nm when excited with excitation light having visible and infrared wavelengths.
Exemplary stimulable phosphor particles suitable for use herein include, but are not limited to, compounds having the formula (I):
MFX 1-z I z uMaXa:yA:eQ:tD (I)
wherein M is selected from the group consisting of Mg, Ca, Sr, Ba, and combinations thereof;
x is selected from Cl, Br and combinations thereof;
Maselected from Na, K, Rb, Cs and combinations thereof;
Xaselected from the group consisting of F, Cl, Br, I, and combinations thereof;
a is selected from Eu, Ce, Sm, Th, Bi and combinations thereof;
q is selected from BeO, MgO, CaO, SrO, BaO, ZnO, Al2O3、La2O3、In2O3、SiO2、TiO2、ZrO2、GeO2、Nb2O5、Ta2O5、ThO2And combinations thereof;
d is selected from V, Cr, Mn, Fe, Co, Ni and combinations thereof;
z is from about 0.0001 to about 1;
u is from about 0 to about 1;
y is from about 0.0001 to about 0.1;
e is 0 to about 1; and
t is 0 to about 0.01.
The amounts represented by "z", "u", "y", "e" and "t" are molar amounts. Unless otherwise indicated, like names appearing elsewhere in the disclosure have the same meaning. In formula (I), preferably, M is Ba; x is Br; maSelected from Na, K and combinations thereof; xaSelected from F, Br and combinations thereof; a is Eu; q is selected from SiO2、Al2O3And combinations thereof; and t is 0.
Other exemplary stimulable phosphor particles for use herein include, but are not limited to, compounds having the formula (II):
(Ba 1-a-b-c Mg a Ca b Sr c )FX 1-z I z rMaXa:yA:eQ:tD (II)
x, M thereina、XaA, Q, D e, t, z and y are as defined above for formula (I); the sum of a, b and c is from 0 to about 0.4; r is about 10-6To about 0.1.
In formula (II), preferably X is Br; maSelected from Na, K and combinations thereof; xaSelected from F, Br and combinations thereof; a is selected from Eu, Ce, Bi and combinations thereof; q is selected from SiO2、Al2O3And combinations thereof; and t is 0.
Other exemplary excitable phosphor particles for use herein include, but are not limited to, compounds having formula (III): m1+X a M2+X’ 2 bM3+X”3:cZ (III)
Wherein M is selected from Li, Na, K, Cs, Rb and combinations thereof;
M2+selected from Be, Mg, Ca, Sr, Ba, Zn, Cd, Cu, Pb, Ni, and combinations thereof;
M3+selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lum Al, Bi, In, Ga and combinations thereof;
z is selected from Ga1+、Ge2+、Sn2+、Sb3+，As3+And combinations thereof;
x, X 'and X' may be the same or different and each independently represents a halogen atom selected from F, Br, Cl, I; and a is more than or equal to 0 and less than or equal to 1; b is more than or equal to 0 and less than or equal to 1; c is more than 0 and less than or equal to 0.2.
Preferred excitable phosphor particles represented by formula (I), (II) or (III) include europium-activated barium fluorobromide (e.g., BaFBr: Eu and BaFBrI: Eu), cerium-activated alkaline earth metal halide, cerium-activated oxyhalide, divalent europium-activated alkaline earth metal fluorohalide (e.g., Ba (Sr) FBr: Eu)2+) Divalent europium activated alkaline earth halides, rare earth element activated rare earth oxyhalides, bismuth activated alkali halide phosphors, and combinations thereof.
An alternative to Eu-doped BaFBrI-type storage phosphors is the Eu-doped CsBr storage phosphor. This is typically used in the form of a binderless storage phosphor screen, in which needle-like Eu-doped CsBr particles are produced by vapor deposition of a material onto a substrate, which then becomes a sealed, water-impermeable material. This acicular europium-doped cesium bromide storage phosphor screen has an emission peak of about 450 nm.
The thermoplastic polymer and inorganic storage phosphor material are melt compounded to form composite thermoplastic material particles, which are then melt extruded or injection molded or hot pressed to form the inorganic storage phosphor layer. For example, the composite thermoplastic particles can be prepared by melt compounding the thermoplastic polymer with the inorganic storage phosphor material using a twin screw compounder. The ratio of thermoplastic polymer to inorganic storage phosphor material (polymer: inorganic storage phosphor) may be about 1: 100 to about 1: 0.01 (by weight or volume), preferably about 1: 1 to about 1: 0.1 (by weight or volume). The composition may include inorganic, organic, and/or polymeric additives to manage the image quality and/or physical properties of the extruded storage phosphor screen. Examples of additives include blue dyes (e.g., ultramarine blue, copper phthalocyanine, etc.) to manage image quality, surfactants (e.g., sodium lauryl sulfate) to manage colloidal stability of the storage phosphor particles, polymers (e.g., ethylene vinyl acetate) to manage rheology of the composite. During melt compounding, the thermoplastic polymer and inorganic storage phosphor material can be compounded and heated through multiple heating zones. For example, in the case of polyolefins, the temperature of the heated zones may vary from about 170 ℃ to 250 ℃, depending on the particular composition of the polymer/additive blend used, and the length of time of each zone depends on the polymer used and the temperature of the heated zone. Generally, the polymer may be heated for a sufficient time and temperature to melt the polymer and incorporate the inorganic storage phosphor material without decomposing the polymer. The time period in each zone may be from about 1 second to about 1 minute. Upon exiting the melt compounder, the composite thermoplastic material may enter a water bath to cool and harden into a continuous strand. The strands may be pelletized and dried at about 40 ℃. The respective screw speeds and feed rates of the thermoplastic polymer 130 and the inorganic storage phosphor material 140 may be adjusted as needed to control the respective amounts in the composite thermoplastic material.
An alternative to melt compounding includes creating a composite mixture in a suitable solvent where the polymer is dissolved or dispersed and the inorganic storage phosphor particles are dispersed, then the solvent is evaporated and the ground polymer/inorganic storage phosphor composite mixture is pelletized using a grinder, a freeze grinder, a densifier, a coalescer, or any other suitable device.
The inorganic storage phosphor/thermoplastic polymer composite material may be melt extruded or injection molded or hot pressed to form an inorganic storage phosphor layer with the inorganic storage phosphor material intercalated ("loaded") within the thermoplastic polymer. For example, the inorganic storage phosphor/thermoplastic polymer composite layer may be formed by melt extrusion or injection molding or hot pressing a composite thermoplastic material. Without being limited by theory, it is believed that forming the inorganic storage phosphor/thermoplastic composite layer by melt extrusion or injection molding or hot pressing increases the uniformity of the inorganic storage phosphor layer and eliminates the undesirable "evaporation space" that occurs when solvent evaporates in conventional solvent coated panels.
Melt-extruded or injection molded or hot-pressed inorganic storage phosphor/thermoplastic composite panels according to the present disclosure may have comparable image quality, as well as improved mechanical and environmental robustness compared to conventional solvent-coated panels.
In the case of melt extrusion or injection molding or hot pressing of the inorganic storage phosphor/thermoplastic polymer composite layer in combination with the support layer, the melt processing parameters (temperature, screw speed and pump speed in the case of melt extrusion and injection molding, and temperature and pressure in the case of hot pressing) may be adjusted to control the respective thicknesses of the inorganic storage phosphor/thermoplastic polymer composite layer and the support layer, respectively.
The thickness of the inorganic storage phosphor/thermoplastic composite layer may be from about 10 μm to about 1000 μm, preferably from about 50 μm to about 750 μm, more preferably from about 100 μm to about 500 μm.
Optionally, the melt extruded or injection molded or hot pressed inorganic storage phosphor panel may include a protective overcoat disposed on the inorganic storage phosphor/thermoplastic composite layer, which provides enhanced mechanical strength and scratch and moisture resistance, if desired.
In one embodiment, the scintillation detection system may include the disclosed storage phosphor panel 100 coupled, inserted, or mounted to at least one storage phosphor panel reader/scanner 160. The selection of a particular storage phosphor reader will depend in part on the type of storage phosphor panel being manufactured and the intended use of the final device used with the disclosed storage phosphor panel.
Image quality assessment
Image quality evaluation was performed as follows. The X-ray source is a caresream Health CS 2200X-ray generator and the image is scanned in ultra high resolution mode using a caresream Health CS7600 intra-oral dental scanner. The screen was exposed to X-rays at 70kV, 7mA, 0.16 seconds. Pixel values were obtained using flat field exposure of a storage phosphor screen, and resolution was obtained by imaging and visually observing a line-to-line model (phantom). The image quality assessment obtained here provides measurable line pairs per mm resolution (e.g., average resolution) consistently or across a group or batch of manufactured panels. For constant X-ray exposure (fixed scanning conditions), the pixel values represent the efficiency of the storage phosphor screen in converting incident X-ray photons into optical photons by photoexcited luminescence, which is detected by a detector and converted into digital signals (e.g., code values). As a result, the difference in pixel code value (cv) represents the difference in efficiency between the storage phosphor screens.
Comparative example 1 (solvent coated screen-no blue dye)
A solvent coated storage phosphor panel is prepared by mixing a BFBI Eu phosphor with a solvent package and a binder. A solvent package was prepared by mixing 78 grams of dichloromethane, 6 grams of methanol, and 15 grams of 1,3 dioxolane. The binder was Permuthane (Stahl, Peabody MA), which was diluted to 15% in the solvent package listed above. Other ingredients were added in the indicated weight percentages. The film stabilizer (tetrabutylammonium thiosulfate) is a 20% solution that is added to help prevent iodide formation in both the liquid and coated state.
| Components | Weight percent of |
| Permuthane solution | 4.185 |
| Methylene dichloride | 26.037 |
| Methanol | 2.013 |
| 1,3 dioxolanes | 4.495 |
| Film stabilizer | 0.357 |
| Phosphor | 62.457 |
| Total of | 100.0 |
The overcoat layer consisted of a mixture of 82% ethyl acetate and 18% copolyester (Vitel 2700B from Bostik America). The phosphor solution was coated onto a PET substrate support and dried using a heated air section (air section)With solvent flashed off, phosphor coverage of 41g/ft was obtained2. The overcoat solution was coated over the phosphor layer and dried using a heated gas section to flash off the solvent, resulting in an overcoat coverage of 0.65g/ft2。
Comparative example 2 (solvent coated Screen-1200 ppm ultramarine blue dye)
A solvent coated storage phosphor panel is prepared by mixing a BFBI Eu phosphor with a solvent package and a binder. A solvent package was prepared by mixing 78 grams of dichloromethane, 6 grams of methanol, and 15 grams of 1,3 dioxolane. The binder was Permuthane (Stahl, Peabody MA), which was diluted to 15% in the solvent package listed above. Other ingredients were added in the indicated weight percentages. The film stabilizer (tetrabutylammonium thiosulfate) is a 20% solution that is added to help prevent iodide formation in both liquid and coated states. The blue dye (AquaMarine blue from Nubiola) was added at a level equal to 1200ppm based on the weight of the phosphor.
| Components | Percentage of |
| Permuthane solution | 4.063 |
| Methylene dichloride | 27.25 |
| Methanol | 2.15 |
| 1,3 dioxolanes | 5.25 |
| Dowanol PM | 0.35 |
| Film stabilizer | 0.35 |
| Ultramarine blue | 0.073 |
| Phosphor | 60.526 |
| Total of | 100.0 |
The overcoat consisted of a mixture of ethyl acetate, acetone, methyl methacrylate polymer (Elvacite 2051), 1-propene, 1,2,3,3, 3-hexafluoro polymer containing 1, 1-difluoroethylene (Superflex 2500-20), N-ethylene bis (stearamide) (Supershift 6350) and polymethyl methacrylate matte beads. The proportions of the components of the solution are listed below:
| components | Percentage of |
| Ethyl acetate | 67.875 |
| Acetone (II) | 22.625 |
| Superflex 2500-20 | 2.74 |
| Elvacite 2051 | 6.39 |
| SuperSlip 6350 | 0.183 |
| Polymethyl methacrylate matte bead | 0.183 |
| Total of | 100.0 |
Phosphor solution was coated onto a PET substrate support and dried using a heated gas section to flash off the solvent, resulting in a phosphor coverage of 41g/ft2. The overcoat solution was coated over the phosphor layer and dried using a heated gas section to flash off the solvent, resulting in an overcoat coverage of nominally 0.65g/ft2。
Comparative example 3 (extruded Screen-No blue dye)
Composite thermoplastic material particle production
An inorganic storage phosphor/thermoplastic composite pellet according to the present disclosure was prepared comprising 80 wt% barium bromoflurodide (BFBrI) and 20 wt% low density polyethylene (LDPE EM811A, Westlake Longview Corp. available from Houston, TX). The die temperature was set at 220 ℃ and the 10 heating zones within the compounder were set at the temperatures shown in table 1 below:
TABLE 1
| Zone(s) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Temperature (. degree.C.) | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 |
After exiting the die, the inorganic storage phosphor/thermoplastic composite pellets containing BFBrI-loaded LDPE entered a 25 ℃ water bath to cool and harden into a continuous strand. The strands were then fed to a granulator and dried at 40 ℃.
Extrusion or hot pressing of inorganic storage phosphor layers
The pelletized composite thermoplastic material was loaded into a single screw Davis Standard extruder. Within the extruder, the heating zones were set to the temperatures shown in table 2.
TABLE 2
The pelletized material (composite thermoplastic) was extruded through a single die set at 430F to form an extruded inorganic storage phosphor panel having a thickness in the range of 100 and 200 microns.
In some cases, the pellets were hot pressed into flat plates by placing the compounded pellets between two plates and applying a pressure of up to 15,000psig using Carver Hydraulic Press Model c. The plate was heated to about 220 ℃. The plates were pressed together for a time ranging from 30 to 60 seconds.
Comparative example 4 (extruded Screen-1000 ppm ultramarine blue dye)
Composite thermoplastic material particle production
Samples were prepared as described in comparative example 3, except that the formulation contained a blue dye (ultramarine blue) in an amount of 1000ppm relative to the weight of the phosphor.
A concentration of 0.5% 65561-A ultramarine blue in LDPE EM811 AA was used to produce a blue dye concentration of 1000ppm in the final inorganic storage phosphor/thermoplastic polymer composite. To achieve this, undyed EM811A polymer resin and dyed (0.5% blue) EM811A masterbatch were blended and compounded with BFBrI powder using a Leistritz twin screw compounder. The die temperature was set at 220 ℃ and the 10 heating zones within the compounder were set at the temperatures shown in table 3 below:
TABLE 3
| Zone(s) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Temperature (. degree.C.) | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 |
After exiting the die, the composite thermoplastic pellets containing 1000ppm blue-dyed LDPE loaded with BFBrI entered a 25 ℃ water bath to cool and harden into a continuous strand. The strands were then granulated in a granulator and dried at 40 ℃.
Extrusion or hot pressing of inorganic storage phosphor layers
The pelletized composite thermoplastic is loaded into a single screw Davis Standard extruder. In the extruder, the heating zone was set to the temperature shown in Table 4
TABLE 4
The pelletized material (composite thermoplastic) was extruded through a single die set at 430 ° F to form an extruded inorganic storage phosphor panel having a thickness in the range of 100 and 200 microns.
In some cases, the compounded pellets were placed between two plates and pressure up to 15,000psig was applied to hot Press the pellets into flat plates by using Carver Hydraulic Press Model C. The plates were each heated to about 220 ℃. The plates were pressed together for a time ranging from 30 to 60 seconds.
Inventive example 1 (Hot pressed Screen-100 ppm copper phthalocyanine blue dye)
Composite thermoplastic material particle production
Samples were prepared as described in comparative example 3, except that the formulation contained a blue dye (copper phthalocyanine) in a content of 100ppm with respect to the weight of the phosphor.
The inventors have appreciated that there are hundreds of potential blue dye materials that can be used to excite the storage phosphor panel. However, the inventors have determined that only certain selected blue dyes improve resolution by exemplary inventive method and/or apparatus embodiments according to the present application. For example, the inventors have determined that copper phthalocyanine based blue dyes improve the resolution of the inventive method and/or device embodiments described herein.
10% strength 65530-A Trans Blue (copper phthalocyanine) in LDPE EM811 AA was diluted stepwise with LDPE EM811A to a concentration of 1%, LDPE EM811A from Westlake Longview Corp, Houston, TX. To obtain a 100ppm blue dye concentration in the final inorganic storage phosphor/thermoplastic polymer composite, undyed EM811A polymer resin and dyed (1% blue) EM811A masterbatch were blended and compounded with BFBrI powder using a Leistritz twin screw compounder. The die temperature was set at 220 ℃ and the 10 heating zones within the compounder were set at the temperatures shown in table 5 below:
TABLE 5
| Zone(s) | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Temperature (. degree. C.) | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 | 220 |
After exiting the die, the composite thermoplastic pellets containing 100ppm of blue-dyed LDPE loaded with BFBrI entered a 25 ℃ water bath to cool and harden into a continuous strand. The strands were then granulated in a granulator and dried at 40 ℃.
Extrusion or hot pressing of inorganic storage phosphor layers
The pelletized composite thermoplastic material was loaded into a single screw Davis Standard extruder. Within the extruder, the heating zones were set to the temperatures shown in table 6.
TABLE 6
The pelletized material (composite thermoplastic) was extruded through a single die set at 430F to form an extruded inorganic storage phosphor panel having a thickness in the range of 100 and 200 microns.
In some cases, the compounded pellets were placed between two plates and pressure up to 15,000psig was applied to hot Press the pellets into flat plates by using Carver Hydraulic Press Model C. The plates were each heated to about 220 ℃. The plates were pressed together for a time ranging from 30 to 60 seconds.
Inventive example 2 (Hot pressed Screen-200 ppm copper phthalocyanine blue dye)
Composite thermoplastic material particle production
Samples were prepared as described in invention example 1, except that the formulation contained a blue dye (copper phthalocyanine) at a level of 200ppm relative to the weight of the phosphor.
Extrusion or hot pressing of inorganic storage phosphor layers
The pelletized composite thermoplastic material was loaded into a single screw Davis Standard extruder. Within the extruder, the heating zones were set to the temperatures shown in table 7.
TABLE 7
The pelletized material (composite thermoplastic) was extruded through a single die set at 430F to form an extruded inorganic storage phosphor panel having a thickness in the range of 100 and 200 microns.
In some cases, the compounded pellets were placed between two plates and pressure up to 15,000psig was applied to hot Press the pellets into flat plates by using Carver Hydraulic Press Model C. The plates were each heated to about 220 ℃. The plates were pressed together for a time ranging from 30 to 60 seconds.
The inventors have determined that in exemplary method and/or device embodiments according to the applications disclosed herein, the use of copper phthalocyanine based blue dyes in amounts greater than 200ppm does not improve resolution and begins to negatively impact resolution by reducing signal levels (e.g., reducing emission flux).
The comparative examples and the invention were characterized as described above.
Exemplary method and/or device embodiments may provide an inorganic storage phosphor panel comprising an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material, and a blue dye, wherein the storage phosphor layer has a resolution >15 lp/mm, wherein the amount of blue dye is reduced by at least 50% compared to a conventional solvent coated inorganic storage phosphor screen with similar resolution. In certain exemplary embodiments, the inorganic storage phosphor panel has an image resolution greater than 16 lp/mm, greater than 17 lp/mm, greater than 18 lp/mm, greater than 19 lp/mm or greater than 20 lp/mm. In certain exemplary embodiments, the amount of blue dye is reduced by at least 60%, by at least 70%, by at least 80%, or by at least 90% compared to a conventional solvent-coated inorganic storage phosphor screen with similar resolution.
Exemplary method embodiments using an inorganic storage phosphor panel may include melt extruding, injection molding or hot pressing a material comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material and a blue dye to form an extruded inorganic storage phosphor layer, wherein the storage phosphor layer has a resolution >15 lp/mm, wherein the amount of blue dye is reduced by at least 50% from a conventional solvent coated inorganic storage phosphor screen with similar resolution; exposing the extruded inorganic storage phosphor layer to X-rays to form a latent image; the latent image in the extruded inorganic storage phosphor layer is exposed to excitation light to produce a digital image of the latent image.
Certain exemplary method and/or device embodiments may provide an inorganic storage phosphor panel comprising an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material, and a blue dye, wherein the storage phosphor layer has a resolution of >19 lp/mm, a resolution of >20 lp/mm, or a resolution of > 21 lp/mm.
In selected exemplary embodiments, the inorganic storage phosphor panel is formed by melt extrusion, injection molding, or hot pressing.
Certain exemplary method and/or apparatus embodiments may provide an inorganic storage phosphor panel in which the relative screen efficiency loss is less than 15%, less than 25%, less than 40% compared to a storage phosphor panel without a blue dye.
Certain exemplary method and/or apparatus embodiments can provide a thermoplastic polyolefin storage phosphor screen having a resolution of >15 lp/mm, a resolution of >16 lp/mm, a resolution of >17 lp/mm, a resolution of >18 lp/mm, a resolution of >19 lp/mm, and a resolution of >20 lp/mm.
Certain exemplary method and/or apparatus embodiments can provide a thermoplastic storage phosphor screen having a resolution of >15 lp/mm, a resolution of >16 lp/mm, a resolution of >17 lp/mm, a resolution of >18 lp/mm, a resolution of >19 lp/mm, and a resolution of >20 lp/mm.
Certain exemplary method and/or apparatus embodiments can provide a storage phosphor screen having a resolution of >15 lp/mm, a resolution of >16 lp/mm, a resolution of >17 lp/mm, a resolution of >18 lp/mm, a resolution of >19 lp/mm, and a resolution of >20 lp/mm.
In selected exemplary embodiments, the inorganic storage phosphor screen is formed by melt extrusion, injection molding, or hot pressing.
Certain exemplary method and/or device embodiments may provide an inorganic storage phosphor panel comprising an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material, and a copper phthalocyanine-based blue dye, wherein the inorganic storage phosphor panel has an image resolution of greater than 15 lp/mm, greater than 16 lp/mm, greater than 17 lp/mm, greater than 18 lp/mm, greater than 19 lp/mm, or greater than 20 lp/mm. In selected exemplary embodiments, the inorganic storage phosphor layer is formed by melt extrusion, injection molding, or hot pressing.
Certain exemplary method and/or device embodiments may provide an inorganic storage phosphor panel comprising an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material, and 1 x 102 -3×102ppm blue dye, wherein the inorganic storage phosphor panel has an image resolution of greater than 18 lp/mm. Certain exemplary method and/or apparatus embodiments may provide inorganic storageA phosphor storage panel comprising an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material and a copper phthalocyanine based blue dye, wherein the inorganic storage phosphor panel has an image resolution of greater than 15 lp/mm, greater than 16 lp/mm, greater than 17 lp/mm, greater than 18 lp/mm, greater than 19 lp/mm, or greater than 20 lp/mm. In selected exemplary embodiments, the inorganic storage phosphor panel is formed by melt extrusion, injection molding, or hot pressing.
Certain exemplary method embodiments may use an inorganic storage phosphor panel comprising a melt-extruded, injection-molded, or hot-pressed material comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material, and 1 x 102To 3X 102ppm of a copper phthalocyanine based blue dye to form an extruded inorganic storage phosphor layer; exposing the extruded inorganic storage phosphor layer to X-rays to form a latent image; the latent image in the extruded inorganic storage phosphor layer is exposed to excitation light to produce a digital image of the latent image.
In one exemplary embodiment, the latent X-ray image in the storage phosphor screen is read by scanning. In one exemplary embodiment, the latent image in the storage phosphor screen is read using reflective scanning in a reflective mode or transmissive scanning in a transmissive mode.
In this document, the terms "a" or "an" are used generically in the patent document, and include one or more than one, independent of any other instances or usages of "at least one" or "one or more. In this document, the term "or" is used to indicate nonexclusivity, or "a or B" includes "a but not" B, "B but not a" and "a and B," unless otherwise indicated. In this document, the terms "including" and "in which" are used as the plain-english equivalents of the respective terms "comprising" and "wherein". Furthermore, in the following claims, the terms "comprising" and "including" are open-ended, i.e., a system, apparatus, article, or method that includes elements in addition to those listed after such term in a claim is still considered to be within the scope of that claim.
Certain exemplary method and/or apparatus embodiments according to the present application may provide virtual definition of a substrate of a dental virtual model. Exemplary embodiments according to the present application may include various features described herein (alone or in combination).
Although the present invention has been described with respect to one or more implementations, alterations and/or modifications may be made to the illustrated embodiments without departing from the spirit and scope of the appended claims. In addition, while a particular feature of the invention may have been disclosed with respect to only one of several implementations/embodiments, such feature may be combined with one or more other features of the other implementations/embodiments as may be desired and advantageous for any given or particular function. The term "at least one" is used to indicate that one or more of the listed items can be selected. The term "about" means that the listed values can be changed slightly so long as the change does not cause the process or structure to be inconsistent with the illustrated embodiments. Finally, "exemplary" means that the description serves as an example, and does not imply that it is ideal. Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by at least the following claims.
Claims (4)
1. An inorganic storage phosphor panel, comprising:
an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material and a selected blue dye to improve resolution,
wherein the inorganic storage phosphor layer is formed by melt compounding the at least one thermoplastic polyolefin, inorganic storage phosphor material and selected blue dye to form a melt and then by melt extruding, injection molding or hot pressing the melt; and
wherein the selected blue dyes include copper phthalocyanine based blue dyesA dye, wherein the copper phthalocyanine-based blue dye is 1 x 102To 2 x 102 ppm。
2. The inorganic storage phosphor panel of claim 1, wherein the image resolution of the inorganic storage phosphor panel is greater than or equal to 15 lp/mm.
3. An inorganic storage phosphor panel, comprising:
an inorganic storage phosphor layer comprising at least one thermoplastic polyolefin, an inorganic storage phosphor material and a selected blue dye to improve resolution, wherein the selected blue dye is a copper phthalocyanine based blue dye, wherein the copper phthalocyanine based blue dye is 1 x 102To 2 x 102ppm。
4. A method of producing an inorganic storage phosphor panel, comprising:
melt compounding at least one thermoplastic polyolefin, an inorganic storage phosphor material and a selected blue dye to form a melt, and then melt extruding, injection molding or hot pressing the melt; and
wherein the selected blue dye comprises 1 x 102To 2 x 102ppm of blue dye based on copper phthalocyanine.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201562266860P | 2015-12-14 | 2015-12-14 | |
| US62/266860 | 2015-12-14 | ||
| US201662304970P | 2016-03-08 | 2016-03-08 | |
| US201662304975P | 2016-03-08 | 2016-03-08 | |
| US62/304975 | 2016-03-08 | ||
| US62/304970 | 2016-03-08 | ||
| PCT/US2016/025118 WO2017105535A1 (en) | 2015-12-14 | 2016-03-31 | Radiation sensing thermoplastic composite panels |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108780671A CN108780671A (en) | 2018-11-09 |
| CN108780671B true CN108780671B (en) | 2022-06-07 |
Family
ID=55863187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680081549.5A Active CN108780671B (en) | 2015-12-14 | 2016-03-31 | Radiation-sensing thermoplastic composite panel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US11200999B2 (en) |
| EP (1) | EP3391380B1 (en) |
| JP (1) | JP2019502137A (en) |
| CN (1) | CN108780671B (en) |
| WO (1) | WO2017105535A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3391380B1 (en) | 2015-12-14 | 2020-09-23 | Carestream Dental Technology Topco Limited | Radiation sensing thermoplastic composite panels |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7381974B2 (en) * | 2005-03-09 | 2008-06-03 | Fujifilm Corporation | Radiation image storage panel |
| CN102681000A (en) * | 2011-02-14 | 2012-09-19 | 富士胶片株式会社 | Radiological image detection apparatus and method of manufacturing the same |
| CN102838992A (en) * | 2007-03-26 | 2012-12-26 | 通用电气公司 | Scintillator and method for making same |
| CN103635975A (en) * | 2011-06-28 | 2014-03-12 | 卡尔斯特里姆保健公司 | Radiation sensing thermoplastic composite panels |
| CN104781692A (en) * | 2012-11-15 | 2015-07-15 | 卡尔斯特里姆保健公司 | Digital radiography detector |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60200200A (en) | 1984-03-23 | 1985-10-09 | 富士写真フイルム株式会社 | Radiation image converting panel |
| JPH0631919B2 (en) | 1987-05-06 | 1994-04-27 | ゼネラル・エレクトリック・カンパニイ | Digital radiographic imaging apparatus and method |
| JPH02276998A (en) | 1989-04-18 | 1990-11-13 | Fuji Photo Film Co Ltd | Radiation image converting panel |
| JPH08290539A (en) | 1995-04-25 | 1996-11-05 | Diafoil Co Ltd | Laminated polyester film for magnetic card |
| EP1168062B1 (en) | 2000-06-26 | 2002-10-23 | Agfa-Gevaert | A cassette assembly for use with roentgen apparatus with automatic exposure control |
| US6652994B2 (en) * | 2000-10-20 | 2003-11-25 | Konica Corporation | Radiation image conversion panel |
| JP2002131493A (en) | 2000-10-20 | 2002-05-09 | Konica Corp | Radiation image conversion panel |
| US6977385B2 (en) * | 2002-03-26 | 2005-12-20 | Agfa-Gevaert | Storage phosphor screen having binderless colored layers |
| JP2004177314A (en) | 2002-11-28 | 2004-06-24 | Konica Minolta Holdings Inc | Radiation image conversion panel and its manufacturing method |
| US7157217B2 (en) * | 2002-12-17 | 2007-01-02 | Fujifilm Corporation | Photothermographic material |
| JP4412704B2 (en) | 2003-06-09 | 2010-02-10 | キヤノン株式会社 | Image processing method and apparatus, and X-ray imaging apparatus |
| EP1526551A1 (en) * | 2003-10-24 | 2005-04-27 | Agfa-Gevaert | Stimulable phosphor screens or panels and manufacturing control thereof |
| US7029819B2 (en) * | 2003-11-12 | 2006-04-18 | Eastman Kodak Company | Phosphor screen and imaging assembly |
| US7214464B2 (en) * | 2004-04-29 | 2007-05-08 | Eastman Kodak Company | High speed positive-working photothermographic radiographic film |
| EP1852487A1 (en) | 2005-02-04 | 2007-11-07 | Konica Minolta Medical & Graphic, Inc. | Process for producing precursor of rare earth-activated alkaline earth metal fluoride halide photostimulable phosphor, rare earth-activated alkaline earth metal fluoride halide photostimulable phosphor, and radiation image conversion panel |
| CN101218319A (en) | 2005-07-13 | 2008-07-09 | 柯尼卡美能达医疗印刷器材株式会社 | Precursor of halide-type photostimulable phosphor, halide-type photostimulable phosphor, radiation image conversion panel, and process for producing them |
| US20090121140A1 (en) | 2005-07-13 | 2009-05-14 | Konica Minolta Medical & Graphic, Inc. | Halide-containing stimulable phosphor precursor, halide-containing stimulable phosphor, radiation image conversion panel and production method thereof |
| JP2008001910A (en) | 2007-08-16 | 2008-01-10 | Fujifilm Corp | Photostimulable phosphor, radiation image conversion panel and method for producing them |
| JP5369979B2 (en) | 2009-08-05 | 2013-12-18 | コニカミノルタ株式会社 | Radiation image detection device |
| US10120083B2 (en) | 2011-06-28 | 2018-11-06 | Carestream Dental Technology Topco Limited | Radiation sensing thermoplastic composite panels |
| US8618512B2 (en) * | 2011-06-28 | 2013-12-31 | Carestream Health, Inc. | Storage phosphor panel with overcoat comprising dye |
| US9223034B2 (en) | 2012-01-09 | 2015-12-29 | Carestream Health, Inc. | X-ray imaging panel with thermally-sensitive adhesive and methods of making thereof |
| JP6197472B2 (en) | 2013-08-13 | 2017-09-20 | コニカミノルタ株式会社 | Hard coat film and radiation image conversion panel using the same |
| US20180374597A1 (en) | 2015-12-14 | 2018-12-27 | Carestream Dental Technology Topco Limited | Radiation Sensing Thermoplastic Composite Panels |
| WO2017105553A1 (en) | 2015-12-14 | 2017-06-22 | Carestream Health, Inc. | Radiation sensing thermoplastic composite panels |
| US11069454B2 (en) | 2015-12-14 | 2021-07-20 | Carestream Dental Technology Topco Limited | Radiation sensing thermoplastic composite panels |
| EP3391380B1 (en) | 2015-12-14 | 2020-09-23 | Carestream Dental Technology Topco Limited | Radiation sensing thermoplastic composite panels |
-
2016
- 2016-03-31 EP EP16719968.6A patent/EP3391380B1/en active Active
- 2016-03-31 US US16/062,393 patent/US11200999B2/en active Active
- 2016-03-31 CN CN201680081549.5A patent/CN108780671B/en active Active
- 2016-03-31 JP JP2018549752A patent/JP2019502137A/en not_active Ceased
- 2016-03-31 WO PCT/US2016/025118 patent/WO2017105535A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7381974B2 (en) * | 2005-03-09 | 2008-06-03 | Fujifilm Corporation | Radiation image storage panel |
| CN102838992A (en) * | 2007-03-26 | 2012-12-26 | 通用电气公司 | Scintillator and method for making same |
| CN102681000A (en) * | 2011-02-14 | 2012-09-19 | 富士胶片株式会社 | Radiological image detection apparatus and method of manufacturing the same |
| CN103635975A (en) * | 2011-06-28 | 2014-03-12 | 卡尔斯特里姆保健公司 | Radiation sensing thermoplastic composite panels |
| CN104781692A (en) * | 2012-11-15 | 2015-07-15 | 卡尔斯特里姆保健公司 | Digital radiography detector |
Also Published As
| Publication number | Publication date |
|---|---|
| US11200999B2 (en) | 2021-12-14 |
| EP3391380B1 (en) | 2020-09-23 |
| JP2019502137A (en) | 2019-01-24 |
| WO2017105535A8 (en) | 2017-09-28 |
| EP3391380A1 (en) | 2018-10-24 |
| WO2017105535A1 (en) | 2017-06-22 |
| US20200279667A1 (en) | 2020-09-03 |
| CN108780671A (en) | 2018-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130001423A1 (en) | Radiation sensing thermoplastic composite panels | |
| US10120083B2 (en) | Radiation sensing thermoplastic composite panels | |
| CN108604471B (en) | Radiation-sensing thermoplastic composite panel | |
| EP2920612B1 (en) | Digital radiography detector | |
| CN108780671B (en) | Radiation-sensing thermoplastic composite panel | |
| US11069454B2 (en) | Radiation sensing thermoplastic composite panels | |
| EP3391381B1 (en) | Radiation sensing thermoplastic composite panels | |
| JPS59126299A (en) | Radiation image conversion panel and manufacture thereof | |
| US7169481B2 (en) | Radiation image conversion panel and manufacturing method therefor | |
| JP2002116300A (en) | Radiation luminescence panel | |
| JP2001249199A (en) | Method for manufacturing radiation image conversion panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |